Apexrunner · Signals Cross Exchange Spread

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://apexrunner.ai/signals/cross-exchange-spread", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://apexrunner.ai/signals/cross-exchange-spread" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "active_arbs": 0,
  "arb_threshold_pct": 0.35,
  "best_net_spread_pct": -0.15,
  "best_spread_asset": "BTC",
  "cached_at": "2026-06-13T12:00:00+00:00",
  "interpretation": "No arb opportunities above 0.35% — best spread: ETH at -0.150%",
  "pairs": {
    "BTC": {
      "arb_active": false,
      "asset": "BTC",
      "direction": "kr_buy_hl_sell",
      "gross_spread_pct": 0.11,
      "hl_mid": 63762.5,
      "kr_mid": 63695.45,
      "net_spread_pct": -0.2,
      "spread_vs_threshold": -0.55
    },
    "ETH": {
      "arb_active": false,
      "asset": "ETH",
      "direction": "kr_buy_hl_sell",
      "gross_spread_pct": 0.16,
      "hl_mid": 1681.45,
      "kr_mid": 1678.8,
      "net_spread_pct": -0.15,
      "spread_vs_threshold": -0.5
    }
  }
}